Attachment B eastside_drawings.pdf

SUBMITTED:

DATE: /

PROJECT ENGINEER

FLATHEAD NATIONAL FOREST

REVIEWED:

DATE: /

DISTRICT RANGER

FLATHEAD NATIONAL FOREST

RECOMMENDED:

DATE: /

FOREST ENGINEER

FLATHEAD NATIONAL FOREST

APPROVED:

DATE: /

FOREST SUPERVISOR

FLATHEAD NATIONAL FOREST

U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE

REGION ONE

ROAD PLANS

FOR

EASTSIDE

ROAD DECOMMISSIONING

HUNGRY HORSE RANGER DISTRICT

FLATHEAD NATIONAL FOREST

INDEX TO SHEETS

DESCRIPTIONNO.

COVER SHEET

ROAD DECOMMISSIONING VICINITY MAP

SCHEDULE OF ESTIMATED QUANTITIES

GENERAL NOTES

ROAD NO. 1048

ROAD NO. 38E

ROAD NO. 1624X

ROAD NO. 9778 NORTH

ROAD NO. 9778 SOUTH

ROAD NO. 9854

ROAD NO. 11101

WEED SPRAYING VICINITY MAP

TYPICALS

EASTSIDE ROAD DECOMMISSIONING

SHEET 2

SHEET 3

Summary of Estimated Quantities SHEET 4

Summary of Estimated Quantities

Road segments to be treated for noxious weed control are shown on sheet 3 Weed Spraying Vicinity Map, and the following list shows the correlating stations to be sprayed:

Rd 1048 0+00 to 390+40

Rd 38E 0+00 to 66+20

Rd 1624X 0+00 to 17+00

Rd 9778 North 0+00 to 25+00

Rd 9778 South 29+60 to 67+30

Rd 9854 95+00 to 152+80

General Notes SHEET 5

General Notes

1. Item 21102 -- Road 1048 Site 1Station 0+70 to 3+70 and site 2 387+40 to 390+40 (300' each site) Obliterate the roadway by restoring to approximate original ground contours. Keep excavated material within the reclamation limits.

Finish slopes to provide gradual transitions in slope adjustments without noticeable breaks. After removing surface material, shape the area to as uniform a natural contour as is practical and develop a seedbed to prepare for seed. Work is estimated as 550 cy to be completed in 8 hours at each site.

2. The contractor is required to haul riprap for the stream restoration sites listed below from the Murry Bay Pit, T29N R17W Sec. 20. The pit is located on FSRD #11071B milepost 0.260. Payment for hauled riprap will be made for actual Vehicle quantities shown in the schedule of items as Pay Item 25103, type 3. No payment and no adjustment in contract unit price will be made for work reduced or eliminated by the contractor for this item.

Rd No. 1048 Rd No. 9778 North Rd No. 38E

Sta 335+80 15cy Sta 4+60 6cy Sta 6+10 6cy

Sta 366+50 9cy Sta 9+15 3cy Sta 54+45 3cy

Rd No. 9778 South Sta 16+00 6cy Sta 58+75 6cy

Sta 66+20 15cy Sta 19+25 6cy

In addition to hauled riprap, suitable rock from the excavation of each stream restoration shall be conserved and placed as riprap in the stream channels and along the toe of the excavation. Conservation of riprap at each stream restoration site is considered incidental to pay item 21104.

3. Streams with surface flow shall require a temporary bypass or water shall be pumped around the site. All in-stream work shall be completed in an expeditious manner to avoid unnecessary impacts to the stream.

4. Unless otherwise noted excavated material from the pipe pulls shall be placed at a setback of 20 feet from the edge of the excavation. This excavated material shall have maximum slope of 4:1.

5. All stream restoration sites shall have straw wattles (minimum 8" diameter) placed parallel and immediately alongside each stream channel, the entire length of the disturbed area shown on the Culvert Removal Typical.

Product shall be secured in accordance with Manufacturer's recommendations.

6. Seeding and mulching, erosion control blankets, straw wattles, placement of riprap, and disposal of culverts accomplished by this contract are incidental to the pay items shown in the schedule of Items. No separate payment will be made for these requirements.

7. Removed gates shall be hauled to the Hungry Horse Ranger Station storage yard and stockpiled as directed, unless an alternative site is mutually agreed to be utilized.

8. Equipment Rental will be utilized as directed by the government to accomplish stream restoration objectives.

This work may include, but not be limited to, placing logs, vegetation, or weirs in the constructed stream channel or on the adjacent banks.

9.Item 81501- Noxious Weed Control consists of controlling noxious weeds in areas shown on the plans.

Noxious weed treatment shall be completed at least 10 days prior to excavation work on each road segment.

Spray the entire 14 foot road surface. Also spray any areas along the cut and fill slopes where noxious weeds are evident and application of herbicide is practicable. The contractor is required to fill out and submit to the COR a

Daily Herbicide Application Report Form for every day that spraying occurs. A copy of the form is attached to specification 815 found in this contract. Roads listed in the contract may require some work to provide access for spraying equipment. Roads will require some work to provide access for spraying equipment. Work may include but is not limited to brushing, berm removal, road repair, slump excavating, and blowdown removal.

Payment for work to open roads for spraying is considered incidental to pay item 81501 Noxious Weed Control.

ROAD 1048 SHEET 6

Station 335+80

Station 366+50

Material to be

Excavated

Remove Existing 24" CMPMaterial to be

Excavated

NOTE: Calculated Lengths and Depths, Actual Distances May Vary

Excavate to this Line

1'

Remove Existing 12" CMP

Excavate to this Line

NOTE: Calculated Lengths and Depths, Actual

Distances May Vary

**Import 15 cy Rock

**Import 9 cy Rock

1048 Roadlog SHEET 7

1048 Roadlog SHEET 8

1048 Roadlog SHEET 9

1048 Roadlog SHEET 10

1048 Roadlog SHEET 11

1048 Roadlog SHEET 12

ROAD 38E SHEET 13

Station 6+10

Station 54+45

Material to be

Excavated

Material to be

Excavated

NOTE: Calculated Lengths and Depths, Actual

Distances May Vary

Excavate to this Line

Remove Existing 18" CMP

Excavate to this Line

NOTE: Calculated Lengths and Depths, Actual

Distances May Vary

Remove Existing 24" CMP

1.5'

**Import 6 cy Rock

**Import 3 cy Rock

ROAD 38E SHEET 14

Station 58+75

Material to be

Excavated

NOTE: Calculated Lengths and Depths, Actual

Distances May Vary

Excavate to this Line

Remove Existing 18" CMP

2'

38E Roadlog SHEET 15

38E Roadlog SHEET 16

1624X Roadlog SHEET 17

ROAD 9778 NORTH SHEET 18

Station 4+60

Station 9+15

Material to be

Excavated

Material to be

Excavated

NOTE: Calculated Lengths and Depths, Actual Distances May Vary

Excavate to this Line

Remove Existing 18" CMP

Excavate to this Line

NOTE: Calculated Lengths and Depths, Actual Distances May Vary

Remove Existing 18" CMP

**Import 3 cy Rock

ROAD 9778 NORTH SHEET 19

Station 16+00

Station 19+25

Material to be

Excavated

Remove Existing 24" CMPMaterial to be

Excavated

NOTE: Calculated Lengths and Depths, Actual

Distances May Vary

Excavate to this Line

Remove Existing 18" CMP

Excavate to this Line

NOTE: Calculated Lengths and Depths, Actual

Distances May Vary

9778 North Roadlog SHEET 20

ROAD 9778 SOUTH SHEET 21

Station 66+20

Material to be

Excavated

NOTE: Calculated Lengths and Depths, Actual Distances May Vary

Excavate to this Line

Remove Existing 24" CMP

** Import 15 cy Rock

9778 South Roadlog SHEET 22

9854 Roadlog SHEET 23

11101 Roadlog SHEET 24

Approx.

Reclamation of Road Template (Recontour Sections)TOE OF FILL

B

RECLAMATION LIMITS 30'

A

TOP OF CUT1:1

5'

UTILIZE BRUSH AND DEBRIS AS SLASH

EASTSIDE ROAD DECOMMISSIONING

Reclamation Detail SHEET 25

Reclamation Detail

Item 21102 -- Road 1048 Site 1- Station 0+70 to 3+70 and site 2 - 387+40 to 390+40 (300' each site)

Obliterate the roadway by restoring to approximate original ground contours. Keep excavated material within the reclamation limits. Finish slopes to provide gradual transitions in slope adjustments without noticeable breaks. After removing surface material, shape the area to as uniform a natural contour as is practical and develop a seedbed to prepare for seed. Work is estimated as 550 cy to be completed in 8 hours at each site.

A = AREA ABOVE Existing road, Reclamation requires placement of excavated material to neat lines & graded from "Toe of Fill" to "Top of Cut." The material line shall closely approximate natural ground contours shaped to blend with the terrain.

B = AREA BELOW Existing road. Decompact and loosen the road surface to a 1 foot minimum depth, by ripping, plowing or scarifying. Pull all major embankments and use material to recontour area A. Strip the surface to conserve brush, slash, debris, and topsoil from the excavation area and return these materials after the Area B has been recontoured to natural slopes.

B = TURNPIKE. When template B is a through fill, rip and roughen or pit and mound the area including ditches to create a natural landscaped seedbed. Strip the surface to conserve brush, slash, debris, and topsoil from the excavation area and return these materials after the Area B has been recontoured to natural slopes.

Apply seed, fertilizer, and mulch at the rates specified in FSSS 625 to the recontoured areas and the disturbed ground on the reclaimed roadbed.

Earth Berm SHEET 26

Earth Berm Installation

Notes:

1. Care shall be taken to not deposit any excavated material onto existing fill slopes.

2. Earth berms shall be constructed to tie into the existing cut slope and to intercept, block and drain across the road when built on ditched segments of road.

3. Seed and mulch all disturbed areas utilizing the appropriate materials and rates specified in SPS 625.

4. Conserve any large rocks encountered in the excavation and place them along the roadside, adjacent to the berm, as directed by the Forest Service. Placement shall be in such manner to prevent traffic from driving around the berm.

5. Detail specifications and specific locations may be changed to fit local conditions as mutually agreed.

Place roadbed material into existing cut slope, intercepting, blocking, and diverting existing ditch

Cut Slope

Fill Slope

1.5:1

1.5:1

4' min

Channel Restoration SHEET 27

Stream Channel Restoration and Culvert Removal Typical

Notes:

1. Place excavated material on either side of the pipe as shown above unless noted otherwise in the road log.

Shape excavated material to blend into the existing cut slope and to avoid holding or trapping water. Block existing ditches by placing excavated material so that it acts as a waterbar and diverts any future surface water and ditch flow across the road into a vegetative filter zone and not directly into the stream. Do not deposit any excavated material on the existing fill slopes or in the existing channel. Conserve rocks from the excavation having a largest dimension between one foot and two feet. Place these rocks along the toe of the slope adjacent to the restored stream channel. Place rock on the erosion blanket as much as possible, beginning at the outlet end. Woody debris may be placed on excavated slopes not to exceed 50% of ground cover.

2. If the invert of the existing culvert outlet is above the existing streambed, remove material below the existing CMP to create a straight-line gradient between the invert of the inlet and the streambed at the outlet.

3. Waddles and straw mats must be placed along streambed on all excavated slopes in accordance with SPS 211.

Certified weed free straw shall be applied in accordance with SPS 625.

4. Keep piled fill material at a maximum slope of 4:1 and a minimum of three feet from road shoulder to accomodate foot traffic and horses.

Exisiting Cut Slope

Existing Fill Slope

Excavate Fill

Fill Material

Stream Channel

Place Erosion Control Blankets from the edge of the channel to the existing road surface for the full width of the disturbed area.

Straw Wattle

Waterbar Type I SHEET 28

Type I Waterbar Installation

Notes:

1. Do not deposit any excavated material onto existing fill slopes.

2. When built on ditched segments of road, construct waterbars to tie into the existing cut slope and to intercept, block, and drain across the road.

3. Seed and mulch all disturbed areas utilizing the appropriate materials and rates specified in SPS 625.

4. When built on grades skew waterbars to facilitate drainage.

5. Grade changes over the length of the waterbar shall be smooth with no abrupt or sharp angle breaks.

3:1

Tie deposition portion of waterbar into existing cut slope, intercepting, blocking, and diverting existing ditch on ditched segments of road

Cut Slope

Fill Slope

12" or to the bottom of the existing ditch

12" lower than inside bottom elevation

Waterbar Type II SHEET 29

Type II Waterbar Installation

Notes:

1. Do not deposit any excavated material onto existing fill slopes.

2. When built on ditched segments of road, construct waterbars to tie into the existing cut slope and to intercept, block, and drain across the road.

3. Seed and mulch all disturbed areas utilizing the appropriate materials and rates specified in SPS 625.

4. When built on grades skew waterbars to facilitate drainage.

5. Grade changes over the length of the waterbar shall be smooth with no abrupt or sharp angle breaks.

3:1

Tie deposition portion of waterbar into existing cut slope, intercepting, blocking, and diverting existing ditch on ditched segments of road

Cut Slope

Fill Slope

24" minimum

36" minimum

Ditch Block SHEET 30

Ditch Block Installation

Notes:

1. Do not deposit any excavated material onto existing fill slopes.

2. Seed and mulch all disturbed areas utilizing the appropriate materials and rates specified in SPS 625.

Place roadbed material into existing cut slope, intercepting, blocking, and diverting existing ditch

Cut Slope

Fill Slope

Existing Dip or Existing Waterbar with no Ditch Block